Unlock instant, AI-driven research and patent intelligence for your innovation.

Resin material capable of selectively adsorbing Am (III) in high-acid environment and preparation method thereof

A selective, silicon-based resin technology, used in chemical instruments and methods, radioactive purification, and other chemical processes. The effect of stable properties and high mechanical strength

Pending Publication Date: 2022-05-13
LANZHOU UNIVERSITY
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The research results show that the preparation process of styrene and divinylbenzene polymer film is complicated, and there are problems such as easy adhesion between particles, and the stability of products prepared in different batches cannot be guaranteed.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Resin material capable of selectively adsorbing Am (III) in high-acid environment and preparation method thereof
  • Resin material capable of selectively adsorbing Am (III) in high-acid environment and preparation method thereof
  • Resin material capable of selectively adsorbing Am (III) in high-acid environment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Eu and Am, the 63rd and 95th elements, belong to the lanthanide and actinide respectively. The outer electron configuration of Eu is [Xe]4f76s2, and the outer electron configuration of Am is [Rn]5f77s2. At present, the isotope tracer method is commonly used for the analysis of the isotope 241Am. The commonly used tracer is 243Am, which is artificially synthesized. Nuclides are not easy to obtain, and the radioactivity is highly toxic, which is not conducive to long-term operation by analysts. Eu(III) is a trivalent lanthanide, which belongs to the same group as Am(III). The two have similar ionic radii and have certain similarities in chemical behavior. The subject group of the present invention once systematically compared the coprecipitation behavior of Am and Eu under different coprecipitants and the adsorption and elution behavior on TRU resin and DGA resin, and referred to the relevant thermodynamic parameters (VisualMINTEQ) of Am and Eu to The co-precipitation be...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a novel application of a known material and a preparation method of a material prepared from the material, in particular to a method for adsorbing Am (III) in a high-acid environment by using TODGA silicon-based resin and a method for preparing a resin material capable of selectively adsorbing Am (III) in the high-acid environment by using TODGA. The new application of the TODGA silicon-based resin disclosed by the invention is that the TODGA silicon-based resin is used for selectively adsorbing Am (III). More preferentially, according to the material for selectively adsorbing the Am (III), provided by the invention, the TODGA is adsorbed on the SiO2 particles. Related simulation tests show that the TODGA has a strong adsorption effect on nuclides such as Am-241 and has excellent high acid resistance, and the solid-phase resin prepared by combining the TODGA and SiO2 is a very potential material which can be applied to separation and enrichment of Am-241 in radioactive waste liquid.

Description

technical field [0001] The present invention relates to a new application of known material and the preparation method of the material prepared by this material. Specifically, the present invention relates to adsorption of Am(III) in a high acid environment with TODGA silicon-based resin, and a preparation of TODGA which can A method for resinous materials that selectively adsorb Am(III) in a high-acid environment. Background technique [0002] The α-radioactive nuclide represented by Am-241 in high-level liquid waste is the main contributor to long-term radioactivity, which poses a huge challenge to the supervision of high-level waste liquid storage. Effective separation of α-radioactive nuclides can greatly reduce the volume of high-level liquid waste that needs to be treated (see literature: ①Song Chongli. Conceptual process of separation method to treat high-level waste liquid in my country[J]. Atomic Energy Science and Technology, 1995, 29( 3):9. ②[1] Zhao Haogui. Resea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01J20/22B01J20/30B01J20/32G21F9/12
CPCB01J20/22B01J20/103B01J20/3204G21F9/12
Inventor 史克亮何建刚邹雅萱刘同环杨军强苏寅仝娟周云董天浩彭晨阳倪旭锋
Owner LANZHOU UNIVERSITY